A graphite boat card point automatic replacement machine

Abstract

The present invention belongs to the field of mechanical technology, and in particular, relates to an automatic replacement machine for graphite boat card points. The automatic replacement machine for graphite boat card points includes: a base, an upper fence, a vibration disk feeding device, a vacuum suction cup feeding device, a pneumatic pressing device, a feeding transmission device, a pressing transmission device, a fixed guide platform, a positioning locking device, a mobile feeding platform, a depth limiting device, and an electric control device. When in use, the graphite boat whose card points are to be replaced is first placed on the mobile feeding platform, and then sent to the bottom of the fixed guide platform. The positioning locking device is used to align the card points on the graphite boat with the hole positions on the fixed guide platform. The pressing transmission device drives the pneumatic pressing device to unload several old card points on the graphite boat in turn, and then the vibration disk feeding device sends a group of new card points to the designated position. Driven by the feeding transmission device, the vacuum suction cup feeding device sequentially puts each group of new card points into the feeding hole of the fixed guide platform, and slides down to the hole position of the graphite boat where the new card points are to be installed. The pneumatic pressing device then presses these new card points into the graphite boat. Compared with the existing manual replacement method of the card points, the automatic replacement machine for the card points of the graphite boat of the present invention has the following effects: high degree of automation, simple operation, high replacement quality, and improved production efficiency and product qualification rate.

Description

Technical Field

[0001] The present invention relates to an automatic replacement machine for graphite boat card points, and more particularly to a device for removing old card points on a graphite boat and replacing them with new card points. Background Art

[0002] The electroplating process of producing solar panels requires the use of a graphite boat. The card points on the graphite boat are used to fix the silicon wafers on the graphite boat and then coat them. In order to fix the silicon wafers in the graphite boat, card points for fixing the silicon wafers are provided on the graphite boat. Since the card points will be worn to a certain extent during the insertion and removal of the silicon wafers, and the card points are easily corroded in the electroplating solution, the card points need to be replaced regularly to ensure the good condition of the graphite boat and thus the coating quality of the silicon wafers. The replacement operation steps of the traditional graphite boat card points are complicated and cumbersome, and the assembly personnel are required to have high skills. If the operation is not in place, the graphite boat and the card points of the graphite boat will be damaged during the replacement process, and the coating yield of the silicon wafers will decrease, affecting the production of the subsequent processes.

[0003] In order to make the card point and the graphite boat fit well, the card point and the hole of the graphite boat are interference fit, so the positioning requirements are very high, and the size of the graphite boat is large, and general mechanical transmission cannot meet the requirements of such positioning accuracy. In addition, the positioning part of the card point cannot exceed the surface of the graphite boat. If it exceeds, it is easy to touch the silicon wafer, causing damage to the silicon wafer. Silicon wafers must be placed on both sides of the card point, so both ends cannot exceed the graphite boat, which requires strict control of the depth of the card point pressed into the graphite boat. In view of the above reasons, the card point is still replaced manually in sequence, and the production efficiency and product qualification rate are low. Summary of the invention

[0004] In view of the above-mentioned defects existing in the prior art, the problem to be solved by the present invention is to provide an automatic graphite boat card point replacement machine, which can ensure sufficient accuracy so that the new card point can be accurately pressed into the graphite boat hole; and the limited depth device can make the depth of the card point in the graphite boat hole constant, solving the problem of inconsistent depth of the card point pressed into the graphite boat in the prior art; at the same time, automatic feeding and pneumatic pressing are adopted to reduce the labor intensity of workers and improve the efficiency of replacing the graphite boat card points.

[0005] The graphite boat card point automatic replacement machine includes: a base, an upper fence, a vibration plate feeding device, a vacuum suction cup feeding device, a pneumatic pressing device, a feeding transmission device, a pressing transmission device, a fixed guide platform, a positioning locking device, a mobile feeding platform, a depth limiting device and an electric control device.

[0006] An upper fence and a fixed guide platform are arranged above the base, the vibration plate feeding device is located on the left side of the base, the electric control device is located on the right side of the upper fence, the feeding transmission device is located on the left side of the fixed guide platform, and the pressing transmission device is located on the right side of the fixed guide platform.

[0007] Two parallel tracks are arranged on the fixed guide platform, and a sliding block is arranged on the track, and the vacuum suction cup feeding device and the pneumatic pressing device are fixed on the blocks respectively. The feeding transmission device and the pressing transmission device drive the blocks through the synchronous belt, so that the vacuum suction cup feeding device and the pneumatic pressing device can move precisely on the track.

[0008] A mobile feeding table is provided under the fixed guide table. The mobile feeding table can be translated outward and is used to place the graphite boat of the card point to be replaced. A depth limiting device is provided under the mobile feeding table and can be moved left and right. When the old card point is unloaded, the depth limiting device gives way to facilitate the discharge of the old card point; when the new card point is installed, the depth limiting device moves to the bottom of the hole to control the pressing depth of the new card point.

[0009] A positioning locking device is provided on the right side of the fixed guide platform. The graphite boat is placed on the mobile feeding platform and sent to the bottom of the fixed guide platform. The positioning locking device is used to align and lock the card point on the graphite boat with the hole position on the fixed guide platform.

[0010] Compared with the existing manual replacement method of the card points, the automatic replacement machine for the card points of the graphite boat of the present invention has the following effects: high degree of automation, simple operation, high replacement quality, and improved production efficiency and product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below in conjunction with the accompanying drawings:

[0012] Attached Figure 1 It is an axial side view of the device structure of the present invention;

[0013] Attached Figure 2 It is a front view of the device structure of the present invention;

[0014] Attached Figure 3 A top view of the device structure of the present invention;

[0015] Among them: 1. Base; 2. Mobile feeding table; 3. Fixed guide table; 4. Vibrating plate feeding device; 5. Feeding transmission device; 6. Vacuum suction cup feeding device; 7. Upper fence; 8. Pneumatic pressing device; 9. Pressing transmission device; 10. Electronic control device; 11. Graphite boat; 12. Positioning locking device; 13. Depth limiting device; 14. Stuck point; 15. Slider; 16. Synchronous belt; 17. Feeding hole; 18. Track. DETAILED DESCRIPTION

[0016] The present invention will be described below in conjunction with the accompanying drawings.

[0017] Figures 1 to 3The present invention is a schematic diagram of the structure of the automatic replacement machine for the card point of a graphite boat. As shown in the figure, the present embodiment includes: a base 1, a mobile feeding platform 2, a fixed guide platform 3, a vibration plate feeding device 4, a feeding transmission device 5, a vacuum suction cup feeding device 6, an upper fence 7, a pneumatic pressing device 8, a pressing transmission device 9, an electric control device 10, a positioning locking device 12, a depth limiting device 13, a card point 14, a slider 15, a synchronous belt 16, a feeding hole 17, and a track 18.

[0018] The operation process of this embodiment is described below in conjunction with the accompanying drawings. The graphite boat 11 with the card point 14 to be replaced is placed on the mobile feeding table 2, and then sent to the bottom of the fixed guide table 3. The positioning locking device 12 is used to align the card point 14 on the graphite boat 11 with the feeding hole 17 on the fixed guide table 3. The pressing transmission device 9 drives the pneumatic pressing device 8 to unload several old card points 14 on the graphite boat 11 in turn. Then the vibration plate feeding device 4 sends a group of new card points 14 to the designated position. The vacuum suction cup feeding device 6 absorbs the new card points 14. Driven by the feeding transmission device 5, each group of new card points 14 is placed in the feeding hole 17 on the fixed guide table 3 in turn. The card points 14 slide down to the hole position of the graphite boat 11 where the new card points are to be installed. The pneumatic pressing device 8 then presses these new card points 14 into the graphite boat 11. In order to ensure the accuracy of the depth of the new card point 14, a depth limiting device 13 is provided under the fixed guide table 3, which can accurately control the depth of the card point 14. After the replacement is completed, the mobile feeding table 2 returns to the initial position, and the graphite boat 11 with the replaced card point 14 is manually taken out, and the replacement of the card point 14 is completed.

[0019] Of course, the above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A graphite boat card point automatic replacement machine includes: a base, an upper fence, a vibration plate feeding device, a vacuum suction cup feeding device Device, pneumatic pressing device, feeding transmission device, pressing transmission device, fixed guide table, positioning locking device, mobile feeding The base is equipped with a platform, a depth limiting device and an electric control device; an upper fence and a fixed guide platform are provided above the base, and a vibrating plate feeding device is located on the base On the left side, the electric control device is located on the right side of the upper fence, the feeding transmission device is located on the left side of the fixed guide platform, and the pressing transmission device is located on The right side of the fixed guide platform; the fixed guide platform is provided with two parallel tracks, on which there are sliding sliders, and the vacuum suction The pneumatic pressing device of the tray feeding device is fixed on the slide block respectively, and is characterized by: The feeding transmission device and the pressing transmission device drive the slider through the synchronous belt, so that the vacuum suction cup feeding device and the pneumatic pressing device can be precisely displaced on the track; a mobile feeding table is provided under the fixed guide table, and the mobile feeding table can be translated outward to place the graphite boat of the card point to be replaced. A depth limiting device is provided under the mobile feeding table and can move left and right. When the old card point is unloaded, the depth limiting device gives way to facilitate the discharge of the old card point; when the new card point is installed, the depth limiting device moves to the bottom of the hole position to control the pressing depth of the new card point; a positioning locking device is provided on the right side of the fixed guide table. The graphite boat is placed on the mobile feeding table and sent to the bottom of the fixed guide table. The positioning locking device is used to align and lock the card point on the graphite boat with the hole position on the fixed guide table.

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